Transaction not yet indexed

HFfn9VMsG3f2qZgPoLrktsVCug5eURs1Wcf7L6k3QufYxcbQ9SPaAc2RSqGzSJzyhZQok4GgM5tbSwfXbpPB4X2

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.